Statistics
2.5 Points 30% of the fifth grade students in a large school district read below grade level. The distribution of sample proportions of samples of 100 students from this population is normal with a mean of 0.30 and a standard deviation of 0.045. Suppose that you select a ...Wednesday, February 10, 2016 by Amy

math
The sum of the second ans the sixth terms of an arithmetic sequence is 4.Thw third term is 24 more than the 11th term. 1Determine the first three terms in the sequence.Monday, January 18, 2016 by ntwa

Math
the second and sixth terms of an arithmetic sequence is 4. the third term is 24more than the 11th term. Determine the first three terms of the sequenceMonday, January 18, 2016 by Nomfundo

pre calc
Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and two thirds of a ...Friday, October 9, 2015 by allexelle

pre calculos
Joely's Tea Shop, a store that specializes in tea blends, has available 45 pounds of A grade tea and 70 pounds of B grade tea. These will be blended into 1 pound packages as follows: A breakfast blend that contains one third of a pound of A grade tea and two thirds of a ...Friday, October 9, 2015 by allexelle

Algebra
In his mathematics class, John has taken 3 tests, each worth 20% of his total grade. His grades on those tests were 92%,83%,and 85%. He has an 100% average on his homework, worth 10% of his grade. All that remains is a final exam worth 30% of his total grade. To the nearest ...Thursday, September 17, 2015 by -N

Maths
a man accepts a position with an initial salary of money $1800 per year if his salary increases at the end of every year by $1500 what would be his annual salary at Te begging of the 11th yearTuesday, August 25, 2015 by Luna

math (algebra)
In Professor Tuffguy's mathematics class, 36 students took the final exam. If the average passing grade was 78, the average failing grade was 60, and the class average was 71, how many of these 36 student passed the final?Wednesday, July 8, 2015 by Samantha

Physics 11th
, a ball is thrown vertically upward from the top of the tower at 4.9 metres per second it strikes the pond near the base of the towers after 3 seconds the height of the tower is. Pls reply...Wednesday, June 10, 2015 by Genius

History
The conflict with the Middle East did not start until after the September 11th attack in America, there were no other problems stirring beforehand. True False is it false?Tuesday, May 26, 2015 by Gaby

English
7.) "To Mrs. Saville, England, St. Petersburg, Dec. 11th, 17" You will rejoice to hear that no disaster has accompanied the commencement of an enterprise which you have regarded with such evil foreboding..." This excerpt from the introductory portion of Mary ...Thursday, May 14, 2015 by Cassie

Algebra 1
A teacher graded the tests for each of her students. She calculated a mean grade of 80 and a standard deviation of 3. One of her students, Katrina, had a z-score of 2. What grade did Katrina get on the test?Sunday, May 10, 2015 by Jacob

math
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level. A. 0.14 B. 0.26 C. 211...Friday, April 17, 2015 by HELP

statistics
Of the 6796 students in one school district, 1537 cannot read up to grade level. Among a sample of 812 of the students from this school district, 211 cannot read up to grade level. Find the sample proportion of students who cannot read up to grade level. A. 0.14 B. 0.26 C. 211...Friday, April 17, 2015 by Jane

programming
Write a Java application that computes and prints the grade of a student according to the following algorithm: 1) It should read from the user TMA score and MTA score. 2a) If their sum is less than 15, the grade "FC" should be printed and the program will stop. 2b) ...Saturday, April 11, 2015 by pooja

ICT (Programming)
Design program logic that receives the letter grades for 4 subjects and then based on the grades, calculate the total grade point. The program should use IF statements to determine the grade point corresponding to the letter grade (as given in the table below). Once all the ...Saturday, April 11, 2015 by Zee

7th grade math (probability)
I'm not sure how to answer this: 3. THe 7th grade wants to have a back-up representative just in case the first teacher is absent. Based on the same scenario as #2, if a math teacher was chosen to be the 7th grade representative, what is the probablility that the back-up ...Monday, March 30, 2015 by Alexis

Math
Kami has an average of 64% in her class. School ends soon and she would like to raise her grade to a 74%.She has 2 tests left and tests counts as 80% of her grade, what would she have to get on the next to test to get her average up to a 74%?Wednesday, March 25, 2015 by Kammi

Math
Theo made the table below to show the number of middle school students who attended the last football game. If the data were displayed in a circle graph, how many degrees would be in the sector representing the eigth graders? Grade 6 Number of students in attendance 375. Grade...Tuesday, March 17, 2015 by Anonymous

Math
Theo made the table below to show the number of middle school students who attented the last football game. if this data were displayed in a circle graph, how many degrees would be in the sector representing the 8th grade Grades 6,7,8 # of students in 6th grade: 375 7th grade...Monday, March 16, 2015 by Ann

statistics
In a course there is a midterm exam, worth 40% of the course grade, and a final exam worth 60%. On the midterm the mean grade was 80 with a standard deviation of 10, and on the final the mean was 75 with a standard deviation of 15. The correlation between the two exams is 0.6...Wednesday, February 25, 2015 by jess

11th chemistry
Give reason- Ice floats on water near the melting point. Copper is ductile and malleable but brass is not. Latent heat of fusion of solid co2 is much less than that of silicone dioxide. pls ans asap...have my exams tom.Wednesday, February 25, 2015 by lavanya

mathematics concepts
Select the answer choice that best describes children's readiness to understand how to tell time. A. Introduce the units of measurement in grade one; expect accurate measurement in second grade. B. It may be introduced in grade 2, but it will be beyond primary before ...Tuesday, February 24, 2015 by lauren

arithmetic
Determining the first three terms of an ArithmetiC progressionof which the (a.)10th term is 31 and the 15th term is 49 (b.)7th term is 3 and 12th term is -3 (c.)5th term is 8 and the 11th term is -28 (d.)9th term is7+9x and d=2x,Show all calculationsTuesday, January 27, 2015 by Thandi Mstletoe

Science
The speed of light is 3 x 10 to the 8th power meters per second. If the sun is 1.5 x 10 to the 11th power meters from earth, how many seconds does it take light to reach the earth?Monday, December 15, 2014 by MG

Math
An oil company owns two refineries. The daily production limits and operating costs for each refinery are given in the table below. An order is received for 1540 barrels of high-grade oil, 1650 barrels of medium-grade oil, and 2860 barrels of low-grade oil. How many days ...Wednesday, December 10, 2014 by LJ

7th grade math
Can you check these? 1. Olivia typed 2 pages in 15 minutes. Write an equation relating the number of minutes m to the number of pages typed. How long will it take her to type 10 pages at this rate? Ans: 15/2 = 7.5 = 7.5 * 10 = 75 minutes 2. If the ratio of Type O to non-Type O...Saturday, December 6, 2014 by Alexis

Math
1. Find the common ratio and 9th term of the sequence 6, -3, 3/2, -3/4, ..... 2. Find the 7th term of the sequence: 2, 6, 18, 54, ..... 3. Find the 11th term of the sequence 1, -1/2, 1/4, -1/8, .....Wednesday, October 8, 2014 by Brianna

Math
A sixth grader weighs 90 pounds which is 120% of what he weighed in 4 th grade. How much did he weigh in 4th grade? 90x100=9000/120= 75 So he weighed 75lbs is this correct?Sunday, October 5, 2014 by Megan

statistics
how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last ...Saturday, October 4, 2014 by nina

algebra 1
princess leia is a very good math student. Her average math grade was a 95 on her 15 tests. If Darth Mangham decides to drop her lowest grade, write an expression to determine her new test average.Friday, October 3, 2014 by paula

programming
create a program using java that calculates the current grade in a classroom. the program should ask for 5 grades as well as the total point value per grade available.Friday, September 12, 2014 by JORDAN

statistics
You want to estimate the difference in grade point averages between two groups of university students to be accurate within 0.2 grade point, with probability approximately equal to 0.95. If the standard deviation of the grade point measurements is approximately equal to 0.6, ...Wednesday, August 13, 2014 by Bob

statistics
The trends in international mathematic and science study (TIMSS) in 2007 examined eighth grade proficiency in math and science. The mean mathematics scale score for the sample of eighth grade students in the US was 508.5 with a standard error of 2.83. Construct a 95% ...Saturday, August 2, 2014 by Marc

programming
Professor Merlin has asked you to help him. He has 5 students who have taken four tests. He wants a program where he can enter the students name and their four test scores. After entering all 5 students then he wants a grade report printed showing the student name and their ...Thursday, July 24, 2014 by Ajit

statistics
If you are told the mean grade in ECON 2023 is 80 with a standard deviation of 5, what is the probability that if you randomly selected 36 students you would find an average grade of 82 or more? I found the Z-score: 82-80/5 Which gave me .6554 then 1-.6554=.3446 So 34% would ...Sunday, July 6, 2014 by Colby

Algebra
Alma can grade a batch of placement exams in 3hr and Kevin can grade a batch in 4hr. if they work together to grade a batch of exams, what percentage of the exams will have been graded by Alma?Saturday, May 24, 2014 by Kgk

math
Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 84, 72, and 96. To get an B in the course, you must have an average of at ...Friday, May 9, 2014 by anonymous

Fractions
Last night 16/28 of the tenth grade girls and 19/30 of the tenth grade boys went to go ice skating. Did a greater fraction of tenth grade girls or boys went ice skating? Prove it.Wednesday, March 26, 2014 by Dave

Computer
Home work:- Write a program to read 5 records consists of first name, last name, id and grade. Assign the grade according to the following specifications: 0<g<= 50 F 50<g<=60 D 60< g<= 70 C 70<g<=90 B 90<g <=100 A Use Stringtokenizer and buffering...Thursday, March 20, 2014 by Bano

Statistics in Psychology
What research steps must you go through to use the relationship between a persons intelligence and grade average in high school so that, if you know a persons IQ, you can more accurately predict the persons grade average?Monday, February 10, 2014 by Annie

STATISTICS
What research steps must you go through to use the relationship between a persons intelligence and grade average in high school so that, if you know a persons IQ, you can more accurately predict the persons grade average?Monday, February 10, 2014 by Anonymous1

Math - Algebra
Von's arcade uses 3 different colored tokens for its game machines. For 500, you can purchase any of the following combinations of tokens: 8 gold, 18 silver, and 7 bronze tokens; 8 gold, 14 silver, and 13 bronze tokens; or 16 gold, 6 silver, and 9 bronze tokens. What is ...Saturday, January 4, 2014 by Ashley Kate

Algebra 2
A grocer mixes x kg of Grade A and Y kg of Grade B nuts to get 60 kg of mixed nuts. Write and equation involving x and y to represent this information. The grocer sells all the mixed nuts at 9.00 per kg. He receives the same amount of money as when he sells the Grade A nuts ...Thursday, December 5, 2013 by Anonymous

College Math 45
Mrs. Brown has 17 children in her first-grade class, and Mr. Lopez has 20 children in his second-grade class. The principal has been asked to select 1 student from one of the classes to appear at a PTA meeting. How many ways can the selection be made?Sunday, October 6, 2013 by Anonymous

Math
A 154-pound woman walks at 3.0 mph 0% grade for 5 min, runs at 5.5 mph 5% grade for 32 min. What is her total caloric expenditure?Sunday, October 6, 2013 by NM

programming
Grades are assigned on the standard 90, 80, 70, 60 scale. You are to write an algorithm which will receive a student name and a percentage grade and display the letter grade to be awardedThursday, September 26, 2013 by Anonymous

math 5th grade
Hunter school has a kindergarten and grades 1 through 6. there are 2 kindergarten and 2 classes in each grade. If the maximum class size is 25, what is the greatest number of students that could be in the school?Thursday, September 12, 2013 by lewis

Math - Ratios
In Mrs. Sotomayor's class, the final grade is based on 6 quizzes and 2 exams. If each exam counts for 3 times as much as each of the quizzes, what fraction of the final grade is determined by each exam?Tuesday, September 10, 2013 by Venus

statistics
1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was:Sunday, August 11, 2013 by CHIMI

Finance
A job pays a salary of 35,000 the first year. During the next 10 years, the salary increases by 4% each year. What is the salary for the 11th year? What is the total salary over the 11 year period? (Round to the nearest cent.)Friday, August 9, 2013 by Canary

Physics 11th
a body moves for a total of 9 seconds starting from rest with uniform acceleration and then with uniform retardation which is twice of value of acceleration to stop .what is the duration of uniform accelerationSunday, June 16, 2013 by anonymous

School (Plz read, really important)
Am I eligible to get a President's Award for Educational Excellence or the President's Award for Educational Achievement and Daughters of the American Revolution??? Here are my grades from last year and this year so far and everything else I accomplish: 7th Grade - 93....Sunday, April 28, 2013 by LARUEN

maths
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question,true if heads and false if tails). What is the chance ...Saturday, April 27, 2013 by anonymous

?
If there are 56 questions and you miss 10 what would your grade be? Your grade would be a 81.88 I divided 100/56 and got 1.78 than I multiplied how many questions I would get right by 1.78. So 46x1.78=81.88Wednesday, April 24, 2013 by Anonymous

?
Let me see if I understand how to find your grade now. So this time if there are 60 questions and you miss 15 your grade would be a 72?Tuesday, April 23, 2013 by Anonymous

statistics
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...Sunday, April 21, 2013 by AmmanJordan

Statistic
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...Saturday, April 20, 2013 by AmmanJordan

science
To get an A grade on the test, you need a total score of more than 16 points. One of the students knows the correct answer to 6 of the 20 questions. The rest she guesses at random by tossing a coin (one toss per question, as in 4B). What is the chance that she gets an A grade ...Saturday, April 20, 2013 by AmmanJordan

Geometry
The grade of a road or a railway road bed is the ratio rise/run, usually expressed as a percent. For example, a railway with a grade of 5% rises 5 ft for every 100 ft of horizontal distance. 1. The Johnstown, Pennsylvania, inclined railway was built as a "lifesaver" ...Monday, April 15, 2013 by Stacey

English
Why should grade 8 students have to do volunteer hours to graduate grade 8? Please provide me with atleast 6 points and so I can expand on it. Your help is very much appreciated!:)Saturday, March 23, 2013 by bob

writing
For my writing, it has to be a three paragraph essay.I have to include 2 differences and 1 similarity about 4th grade vs. the 5th grade. How do I start my paragraph?Wednesday, February 27, 2013 by Celest

Trigonometry
Mountain Descent A road sign at the top of a mountain indicates that for the next 4 miles the grade is 12%. Find the angle of the grade and the change in elevation for a car descending the mountain.Monday, February 4, 2013 by AwesomeGuy

math
franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!Saturday, February 2, 2013 by wobble it

MATH
In Marissa's Calculus course, attendance counts for 5% of the grade, quizzes count for 15% of the grade, exams count for 60% of the grade, and the final exam counts for 20% of the grade. Marissa had 100% average for attendance, 93% for quizzes, 82% for exams, and 81% on ...Sunday, January 27, 2013 by Kristina

Probability
Given the probability of rain on any given day in March is 1/5, find the probablity that: It rains on March 10 and 12, but not on March 11th. This is supposed to be used with multiplication Rule 1: P(A and B)= P(A)*P(B) cant figure it out, the answer is 4/125 and I have no ...Thursday, January 24, 2013 by anoneemose